Curious as to the source(s) of information contained in some of these posts, e.g., early-on Ansley H Fox guns were made in Baltimore prior to Philadelphia. My eyesight if far too lacking to determine the barrels have been re-blued from a photo which at best is also lacking. Sound like what I used to hear at gun shows from a 20+ year old examining a AE grade original Fox, second edition.
Use a choke gauge to determine choke(s)on a 28" barrel as well as others. Serial numbers are located as follows: on the water table of the receiver, on the barrels, and on the forearm. If these match, as they should, this indicates the gun was assembled and shipped from either A H Fox or Savage. The Fox Gun company was in transition to Savage in the 1929-30 time frame. Some residual parts were used from Fox. The checkering pattern on the stock is indicative of Utica, NY Savage.
Michael McIntosh is the authority on Foxes as I have learned. Own many Foxes of both vintages and am always in the market for the greatest SxS built in the USA.
By the way, it is an extractor gun and not an ejector gun. The checkering and picture only reveal that much. Barrels on top if they have not been buffed out will indicate Baltimore, Philadelphia, or Utica, NY. Specimens such as this need hands on examination. Speculation is out. Hope this helps.
Sterlingworths were not made in Baltimore.